Adds fast-forward action and updates to pre-commit

.github/workflows/fast-forward.yaml

@@ -0,0 +1,22 @@
+  name: Fast Forward PR
+  on: 
+    issue_comment:
+        types: [created]
+
+  jobs:
+    fast_forward_job:
+      name: Fast Forward
+      if: github.event.issue.pull_request != '' && contains(github.event.comment.body, '/fast-forward')   
+      runs-on: ubuntu-latest
+      steps:
+        # To use this repository's private action, you must check out the repository
+        - name: Checkout
+          uses: actions/checkout@v2
+        # Basic use case example
+        - name: Fast Forward PR
+          id: ff-action
+          uses:  endre-spotlab/[email protected]
+          with:
+            GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+            success_message: 'Success! Fast forwarded ***target_base*** to ***source_head***! ```git checkout target_base && git merge source_head --ff-only``` '
+            failure_message: 'Failed! Cannot do fast forward! - try merging the target back into source first.'

.pre-commit-config.yaml

@@ -55,15 +55,15 @@ repos:
     rev: v1.2.3
     hooks: 
     -   id: no-commit-to-branch
-        args: ["--branch", "staging", "--branch", "main", "--branch", "dev"]
+        args: [--branch, staging, --branch, main, --branch, dev]
     -   id: check-added-large-files
         args: ['--maxkb=200']
     # -   id: file-contents-sorter
     #     files: '^\.Rbuildignore$'
-    -   id: end-of-file-fixer
-        exclude: >
-          '\.Rd'
-          'tests/testthat/_snaps'
+    # -   id: end-of-file-fixer
+    #     exclude: >
+    #       \.Rd|
+    #       tests/testthat/_snaps/*
     - id: detect-private-key
     # - id: detect-aws-credentials
 -   repo: local